The Valve,check, cataloged under National Stock Number 4820-01-114-3859, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Defense Medical Standardization Board. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-114-3859 |
| Primary Part Number | 95043 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Defense Medical Standardization Board |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Connection Style | COMPRESSION (TUBE) FIRST END |
| Mounting Position | VERTICAL |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRING |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Thread Series Designator | UNF FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 95043 | Defense Medical Standardization Board (USA) |
| Reference | Meaning |
|---|---|
| 2132 B-4CC-0.8X | 3/2 Design control — primary reference U.S. Government activity |
| B3003066 | 5/9 Secondary reference Federal Equipment and Manufacturing Co., Inc. Div Federal Equipment & Manufacturing Co., Inc. |
NSN 4820-01-114-3859 is a Valve,check, manufactured by Defense Medical Standardization Board, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-114-3859 has 1 manufacturer part number on file: 95043 (Defense Medical Standardization Board).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-506-0760, 5935-01-663-5246. Verify interchangeability with system specifications before substitution.
Key specifications for 95043: Flow Control Device: POPPET; Connection Style: COMPRESSION (TUBE) FIRST END; Mounting Position: VERTICAL; Connection Type: THREADED EXTERNAL TUBE FIRST END. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.